Muratov V. Improving the study of technological processes, devices and systems based on experimental planning

The dissertation solved an urgent scientific and applied problem, which is to reduce the cost (time) of multifactor experiments in the study of technological processes, devices and systems through the development and implementation of methods and software to optimize the plans of multifactor experiments. In the dissertation work for the first time new scientific results were obtained: methods of synthesis of optimal or close to optimal cost (time) plans of multifactorial experiments, which differ from the existing ones in that they are based on the application of shoal fish, monkey search, jumping frogs allow to build such experimental plans without a complete search of options for permutation of experiments and reduce the cost (time) of their implementation in comparison with existing methods; mathematical models that characterize the influence of the fractional composition of the working mixture of powders, the content of liquid-viscous components and energy components on the properties of solid mixed rocket fuel and allow to find the optimal ratios of these components in its manufacture. It is shown that the gains in comparison with the initial plans for the cost of implementation of the obtained experimental plans for the study of these objects are in the range from 1.46 to 5.9 times, and in the implementation time from 3.33 to 13.69 times. The practical significance of the developed computer programs lies in the possibility of their application in practice for modeling various technological processes, devices and systems. The results of theoretical and experimental research of the dissertation are used in the practice of industrial enterprises and organizations, as evidenced by the relevant acts of implementation. The proposed methods of synthesis of cost-optimal (time) cost plans for multifactor experiments are implemented in the form of hardware and software, which received patents of Ukraine for utility models and certificates of copyright registration for computer programs. The results of theoretical and experimental research of the dissertation are implemented in the practice of the following enterprises and organizations: Private Joint Stock Company "HARTRON" (Kharkov), State Enterprise "Research and Production Association" Pavlograd Chemical Plant "(Pavlograd), National Aerospace University named by N.E. Zhukovsky "Kharkiv Aviation Institute".